Budget and unit economics

Build a monthly ad budget pacing sheet

A pacing sheet compares approved spend with actual spend and remaining commitments. Define the period, timezone, currency, and budget scope, then calculate the remaining allowance from fresh data. Treat daily pacing as a plan, not a guarantee that platform delivery or billing will follow a perfectly even line.

A campaign is under its daily budget, yet the account is on course to exceed the monthly plan. Another account is behind a straight-line pace because a promotion is intentionally scheduled for the final week. Both situations require more context than a red or green daily pacing indicator.

A useful pacing sheet connects approved authorization, completed spend, planned future activity, and the freshness of the source data. It should help the operator decide what to review next without pretending that every day deserves equal spending.

Define the budget boundary

Record the period, currency, accounts, campaigns, and cost categories included. State whether the plan covers media only or also fees and production costs.

Identify the person who can change the authorization. A campaign recommendation to spend more is not itself an approved increase in the monthly plan.

Use the agent budget guardrails guide to connect the sheet with operator permissions and escalation. The pacing calculation should inform the authorized workflow rather than silently create new spending authority.

Separate actual spend from planned settings

A campaign budget setting is an input to delivery, not the amount already spent. Keep actual reported cost in one field and current or scheduled budget settings in another.

Google's average daily budget documentation and overdelivery guidance explain why daily spend can differ from a simple fixed daily amount. Verify the current rules for the campaign type and budget configuration you use.

Do not build a monthly control by assuming every platform setting is a hard same-day cap. Track the business's approved exposure separately.

Build the core sheet

ColumnMeaning
Approved period budgetCurrent authorized total for the defined scope
Actual spend throughCost and the latest complete timestamp
Remaining allowanceApproved total minus actual included spend
Scheduled commitmentsKnown future plans that consume the allowance
Remaining active daysDays when campaigns are intended to run
Planned future spendDay or event-level allocation of the remaining plan
Forecast period totalActual spend plus the current forecast
Exception ownerPerson responsible for resolving a mismatch

Keep formulas visible and inputs distinguishable from calculations. A manually overwritten forecast should not look like an automatic result from the source data.

Calculate a simple remaining pace

In an illustrative 30-day month, suppose the approved media budget is $30,000 and actual spend through the end of day 10 is $9,000. The remaining allowance is $21,000 across 20 calendar days, implying an even remaining pace of $1,050 per day.

That is a planning reference. If only 15 of those days are intended to be active, or a promotion needs a larger share, the allocation should reflect the actual schedule.

Do not use the monthly total divided by 30 after substantial spend has already occurred and call it the remaining target. The relevant calculation starts with what is left.

Account for events and commitments

List promotions, launches, paused days, scheduled increases, and other known commitments. Reserve their planned exposure before allocating discretionary spend across the rest of the period.

If two teams schedule increases from the same remaining allowance, the sheet should reveal the double commitment. Assign each planned amount an owner and a status such as proposed, approved, scheduled, or completed.

Use the spend scenario guide when future efficiency or capacity is uncertain. The pacing sheet can carry the approved scenario while preserving alternatives separately.

Make data freshness part of the calculation

Show the latest complete spend timestamp and any missing accounts. A remaining allowance calculated from stale data can overstate what is still available.

Distinguish actual-to-date from a partially reported current day. If the sheet includes a current-day estimate, label it and avoid presenting the combined amount as fully settled spend.

Missing source data should trigger an exception, not default to zero. The operator needs to know whether the account is genuinely under pace or merely underreported.

Review pacing and performance separately

Being behind pace does not automatically justify spending the difference. Check whether the business still wants the volume, whether the campaign can use the budget at acceptable economics, and whether inventory or sales capacity can support it.

Being ahead of a straight line is not automatically a failure if the approved plan intentionally front-loaded spending. Compare actuals with the event-aware plan as well as the even-pace reference.

The budget is a constraint and allocation decision, not a requirement to exhaust money regardless of the available opportunity.

Include cash timing where it matters

Media delivery, platform billing, payment settlement, and customer cash collection can happen on different dates. The pacing sheet tracks one part of that picture.

Use the cash collection timing guide to connect planned advertising outflows with the business's cash calendar. A campaign can be within its monthly spend authorization while still creating an uncomfortable timing gap.

Keep finance's cash view separate from platform cost reporting so the team can explain why the two balances differ.

Set an exception workflow

Define who reviews a projected overrun, missing data, unexpected delivery, or a request to use unspent allowance elsewhere. Record the exact proposed change and its impact on the total plan.

After any approved edit, verify the platform settings and update the sheet's commitment status. A scheduled change should remain scheduled until execution is confirmed.

The daily review should leave a short decision record: current exposure, any exception, the approved next action, and the next check. That makes the sheet useful to a human buyer or an AI operator without turning a forecast into an unexamined instruction to spend.

Plan the outcomes as well as the spend

Use the PPC budget workbook to connect planned spend with CPC, accepted inquiries, qualification and expected customers. The worked forecast shows how to challenge the assumptions before approving an allocation. Keep that outcome forecast separate from this sheet's comparison of actual spending with the approved allowance.

Budget advertising around cash collection timing

Build a cash calendar for advertising spend, billing, payment settlement, customer collections, refunds, and operating commitments before approving expansion.

Build three ad-spend scenarios for next month

Plan conservative, base, and expansion advertising scenarios with explicit response assumptions, contribution, capacity, cash requirements, and decision triggers.

Set budget guardrails for an AI media buyer

Define spending authority for an AI media buyer with account scope, remaining-budget calculations, cumulative-change limits, and a reviewable approval example.

Calculate allowable CAC from a first order

Build a first-order acquisition-cost ceiling from retained revenue, variable costs, required contribution, and a clear definition of new customers.

Have a correction or a question about the workflow? Contact GaaS. Read our editorial standards for sourcing and example conventions.